\begin{thebibliography}{20}
	\bibitem{WP}
	Wikipedia, \url{http://www.wikipedia.org}
	
	\bibitem{AWDWR}
	Agile Web Development With Rails, terza edizione. ISBN: 0-9745140-5-5
	
	\bibitem{PR}
	Programming Ruby, seconda edizione. ISBN: 978-0-9804552-0-5
	
	\bibitem{SR2}
	SitePoint Simply Rails 2, seconda edizione. ISBN: 978-0-9804552-0-5
	
	\bibitem{RCasts}
	RailsCasts, free Ruby on Rails screencasts, \url{http://railscasts.com/}
	
	\bibitem{PCode}
	PeepCode screencasts, \url{http://peepcode.com/}
	
	\bibitem{RF}
	Rails forum, \url{http://railsforum.com/}
	
	\bibitem{RR}
	Robby on Rails, \url{http://robbyonrails.com/}
	
	\bibitem{RGuides}
	Rails guides, \url{http://guides.rubyonrails.org/index.html}
	
	\bibitem{RuF}
	Ruby forum, \url{http://www.ruby-forum.com/forum/3}
	
	\bibitem{RsApi}
	Rails API, \url{http://api.rubyonrails.org/}
	
	\bibitem{RuApi}
	Ruby API, \url{http://ruby-doc.org/}
	
	\bibitem{YAML}
	Linguaggio Yaml, \url{http://www.yaml.org/}
	
	\bibitem{AGILE}
	Approccio AGILE alla programmazione, \url{http://agilemanifesto.org/}
	
	\bibitem{Prototype}
	\url{http://www.prototypejs.org/}
	
\end{thebibliography}